Article 17 - Perfection: additional provisions

(1) Perfection of a Security Interest in a Securities Account also perfects a Security Interest in the Security Entitlements carried in the Securities Account.
(2) Perfection of a Security Interest in a Commodity Account also perfects a Security Interest in the Commodity Contracts carried in the Commodity Account.
(3) Perfection of a Security Interest in Collateral also perfects a Security Interest in a Supporting Obligation for the Collateral.